This report is a call to decision makers, parents, communities and to the world to end child marriage. It documents the current scope, prevalence and inequities associated with child marriage.

Education is essential to prepare adolescent girls for healthy, safe and productive transitions to adulthood.

Objectives: To describe the sexual and reproductive behaviour of adolescents in sub-Saharan Africa, particularly 15- to 19-year-olds.

The authors analyzed the reasons behind first sex, cases of regret, and the association between reasons and regret. They provided a questionnaire to 8,495 high school students ages 14–18 years residing in the Philippines, El Salvador, and Peru.

This study modeled primary abstinence and age at first sex in a cross-sectional sample of Ghanaian youth ages 17 to 22 years. The aim was to examine how reproductive knowledge and social cognitive factors jointly affect the choice to initiate sex.

Globally, adolescents aged 12–15 years are making sexual and reproductive decisions of profound significance for their future, often based on misguided, inadequate or dangerously wrong information.

Despite decades of investment in HIV prevention, a large and vulnerable population—that of adolescent girls—remains invisible, underserved, and at disproportionate risk of HIV.

Adolescents are particularly vulnerable to sexual coercion, as victim as well as perpetrator. This paper aims to adapt sexual and reproductive health interventions to the reality of young people’s sexuality and relationships.

Providing sexual and reproductive health (SRH) education in schools is a cost-effective way of reaching young people because the majority of adolescents are enrolled in school.

Drawing on definitions of agency from within the international development literature, the author focuses on decision-making processes leading to young people's involvement in relationships; actions undertaken to maintain secret relationships in contexts where young people's sexual agency is gene